The Last Civilization of the Future Era

"Stay alive..." "We must... Survive..." Looking at the apocalyptic gray-red sky in the distance, the last heart on this planet finally stopped beating. Until this point, the cruel reality seems to ruthlessly declare a fact—— Human civilization has perished. And what dominates all of this is the interstellar battleship that rises slowly with a huge roar, one of the eight star civilizations. Technology, era, and powers discovered. All of this was reduced to nothing under the impact of destruction. But, is this really the case?